Machine for shaping stitchdown uppers over lasts



July 28, 1953 E. L. BUTLER EIAL 2,646,533

MACHINE FOR SHAPING STITCHDOWN UPPERS OVER LASTS Filed May 25, 1949 6 Sheets-Sheet 1 Fg'g 2 fnvenfor's Efnesz L.Butler' July 28, 1953 L. BUTLER EIAL 2,646,533

MACHINE FOR SHAPING STITCHDOWN UPPERS OVER LASTS Filed May 25, 1949 6 Sheets-Sheet 2 Inventors Ernest L.Buzler Otis Mholmes July 28, 1953 E. L. BUTLER EI'AL 2,646,583

MACHINE FOR SHAPING STITCHDOWN UPPERS OVER LASTS I Filed May 25, 1949 6 Sheets-Sheet 5 Inventors Ernesz" L.Buzler' Ozz's M Holmes y U10 1 rneg July 28, 1953 E. L. BUTLER ETAL 2,646,583

MACHINE FOR SHAPING STITCHDOWN UPPERS OVER LASTS Filed May 25, 1949 6 Sheets-Sheet 6 f Inventors Patented July 28, 1953 MACHINE FOR SHAPING S TITCHDOWN UPPERS OVER LASTS Ernest L. Butler, Lynn, and Otis M. Holmes,

Beverly, Mass, assignors to United Shoe Machinery Corporation, Flemington, N. J a corporation of New Jersey Application May 25, 1949, Serial No. 95,226

28 Claims.

This invention relates to machines for shaping shoe uppers and is herein illustrated as embodied in a machine for shaping stitchdown uppers over lasts and for pressing together the outwardly flanged upper materials and a shoe sole.

As herein illustrated the present invention is Y embodied in a machine of the type shown, for example, in United States Letters Patent No. 1,861,832, granted June 7, 1932, on an application filed in the name of William C. Baxter and in United States Letters Patent No. 2,226,754, granted December 31, 1940, on an application filed in the name of Albin C. Eek et al. It is to be understood, however, that the invention is not limited in scope to machines for shaping stitchdown uppers over lasts, the invention in certain aspects thereof being equally applicable to machines for shaping uppers other than stitchdown uppers and to machines for shaping uppers over forms other than lasts.

In shaping stitchdown uppers over lasts it has been the practice heretofore to shape the toe portion in a machine constructed for that specific operation and to shape the heel portion in another machine constructed for that operation and finally to shape the side portions of the upper over the last in a device or machine particularly suited to that operation. Thus the complete shaping of a stitchdown upper over a last heretofore required three separate and distinct operations on three diiferent machines, and usually by three different operators; While this system is considered expeditious and satisfactory in the manufacture of shoes in the adult sizes in which the variations in heel heights and toe spring make it difficult to shape the entire upper over a last in a single operation, manufacturers of stitchdown shoes in the juvenile sizes have found this system too expensive and unduly complicated. To improve the facilities for manufacturing stitchdown shoes in the juvenile sizes it is an object of the present invention to provide a machine for shaping uppers over lasts having instrumentalities for shaping the toe, heel and side portions of a stitchdown upper in a single operation.

- With the above object in view the present insupported on a sole onsaid plates, and a plurality of wipers constructed and arranged to engage the entire extent of the outwardly flanged margins of the upper materials. To cause the upper to be tensioned over the last and to cause the sole and the outwardly flanged margins of the upper materials to be pressed together and adhesively attached to each other between said wipers and said sole suppotring plates, the machine is provided with an actuator, herein illustrated as a cam shaft, and connections from said actuator for closing the gripper jaws on the work and for moving the sole supporting plates upwardly to bring the entire margin of the sole into intimate contact with the outwardly flanged upper materials. In another aspect thereof the invention relates to the provision, in a machine for shaping stitchdown uppers over lasts having toe wipers, heel wipers, forepart grippers and sole pressing means, of manually operated means for initially closing the forepart gripper jaws on the outwardly flanged margins of theshoe upper materials, means herein illustrated as a detent for holding the gripper jaws closed on th ework, power operated means for further closing the gripper jaws and actuating them to tension the upper over the last, and means herein illustrated as a lever actuated by said power operated means for disengaging said detent so that the gripper jaws will open at the appropriate time in the machine cycle. The opening of the gripper jaws is usually timed to occur in the course of the upward movement of the sole supporting plates and just before such upward movement of the plates has brought the upper into a position in which the Wipers register substantially with the edge of the last bottom.

The present invention in another aspect thereof consists in the provision in a machine for shaping uppers over lasts of a pair of end wipers constructed and arranged for pivotal closing movement about an axis coincidental with the shoe of an area which is not engaged and shaped by the wipers. The illustrated side wipers opcrate in conjunction with the heel wipers, moving bodily toewardly with the heel wipers and having operative movement widthwise of the shoe. At their toe ends the respective side wipers are recessed in order to provide clearance for the operation of the thin forepart wipers above referred to. The wiper assembly is here.- in illustrated as embodied in a machine for shaping stitchdown uppers over lasts but it is to be understood that the invention in its application to the wiper assemblyabove defined is not limited in scope to for shaping stitchdown uppers over lasts but is equally applicable to machines for operating on the uppers of shoes other than stitchdown shoes The wiper assembly herein illustrated would, for example, find utility in the shaping of prewelt uppers over lasts.

In accordance with a further feature of th invention the heel and side wiper assemblies are mounted in a carriage which is movable, longitudinally of a shoe in the machine. The heel wipers are mounted in a first slide and the side wipers are mounted in a second slide. The first slideis mounted in a guideway in the second slide and the second slide is mounted in a guideway in the carriage for movement to bring the wipers into and out of operative position. It will be understood that it within the scope of the present invention to arrange a carriage such as the carriage above referred to, to mount a combination of toe wipers and side wipers, if desired." In accordance with a further feature of the invention the first slide, above referred to, is provided with a shoe abutting member constructed and arranged to determine the extent of the wiping movement or the end wipers longitudinally of theshoe. Mountedon the illustrated second slide is a holddown which engages the last on which the upper is mounted and holds it against movement relatively to the upper heightwise thereof. In the illustrated organization the iirst slide is yieldingly held in an advanced position relatively to the second slide so that the end wipers operateprior to the side wipers. Operating connections are provided between the first slide and the side wipers whereby said side wipers are actuatedby relative movement of the first slide and the side wipers longitudinally of the, shoe after the end wipers have engaged the shoe. In the illustrated organiza-- tion rack teeth formed in said first slide and gear segments formed in the side wiper carriers provide the means for actuating the side wipers. In the illustrated machine the first slide is mounted in the second slide which in turn is mounted in the carriage and means herein illustrated as a manually controlled pawl is provided for holding said second slide against retracting movement relatively to the carriage. In the operation otthe illustrated machine actuating means advances the carriage longitudinally of the shoe advancing said slides as a unit un-v til the first slide is arrested by the engagement of the shoe abutting member above referred to with an end portion of the shoe. Continued advancement of the carriage causes the second slide to approach the first slide thus causing the rack and segment mechanism above defined to impart wiping movements to the side wipers.

These and other features of the invention will now be described with reference. to the accompanying drawings and pointed out in the appended claims.

In the drawings,

Fig. 1 is a left side elevation, partly broken away, illustrating one station only of a two-station machine embodying the features of the present invention;

Fig. 2 is an enlarged view in right side elevation, illustrating a portion of the treadle operated mechanism of the machine illustrated in 1.;

Fig. 3 is a front elevation illustrating the upper portion of the station at the left of the mac i e;

Fig. i is a plan view of that station illustrated in Fig. 3, certain parts being broken away to disclose underlying parts;

Fig. 5 is an enlarged sectional view taken substantially on the line V-V of Fig. i;

Fig. 6 is a plan View similar to Fig. 4 showing the operating parts as they appear at thev end of their cycle of operation;

7 Fig. '7 is a plan view of the carriage and the mechanism mounted therein, certain parts be-. ing broken away to disclose underlying parts;

Fig. Bis a section taken substantially on the line VIII-471K of Fig. 7;

Fig. 9 is a sideelevation of the carriage with a portion of its side wall broken away;

Fig. 10 is a plan view similar to Fig. 4 showing the carriage fully retracted;

Fig. 11 is a section taken substantially on the line XIXI of Fig. '7; and

Fig. 12 is a sectional elevationof the work sup,- porting plates taken on the longitudinal median line of. a shoe supported thereon.

The invention is illustrated in the. drawings as embodied in a machine for shaping the uppers of stitchdown shoes over lasts. In the operation of the illustrated machine'the outwardly flanged portions of an upper, counter, and lining assembled on a last are cemented together and cement attached to the heel end portion of an extension sole tacked to the last bottom. The shoe parts assembled on a last, arranged in right side up position, are mounted on horizontal work supporting plates, and are arranged relatively to the operating instrumentalities of the machine by advancing the assembly toewardly to bring it into engagement with a pair of toe wipers arranged in retracted position. A heel carriage is then advanced horizontally toward the heel end;

of the shoe from a remote position to bring the heel wipers and side wipers into registration with the work. Thereupon a treadle is depressed to cause portions of the outwardly flanged margin of the upper at opposite sides of the forepartto be engaged by grippers which operate subsequently to tension the upper over the last. After bringing a last holddown member into engagement with the cone portion of the last another treadle is depressed to operate a clutch to initiate the power cycle of the machine. The illustrated machine is substantially similar in its general organization to the machine disclosed in the Baxter patent, and includes certain features, disclosed in the Eek et al. patent, said patents being hereinbefore identified.

Referring to Fig. 1, the numeral 20 identifies a standard in which is journaled a motor driven shaft 22 and a cam shaft 24 operatively connected to the shaft 22. Cams fixed to the shaft 24 operate a lever 26 to advance a pair of toe wiper plates, a lever 28 which actuates tip line grippers at theleft side of the machine, a similar 5 lever (not shown) which operates tip line grippers at the rightside of the machine, and a thrust member orarm 30 which actuates toggle members 32 and 34 to impart upward movement to a sliding post 36 which mounts work supporting plates hereinafter described. The thrust member 30 also operates a link 38 which carries a spring 40 which operates mechanism for advancing a heel carriage 42 to actuate a pair of heel wiper plates and a pair of side wiper plates. The operation of the cam shaft 24 is controlled by a one revolution clutch mechanism (not shown) which is operated by the depression of a treadle 44.

Referring to Fig. 1 illustrating the forepart grippers at the left side-of the machine and their operating mechanism, said grippers comprise a lower jaw 46 fixed to an upward extension 48 of the head 50 of a vertical shaft 52 slidably'mounted for vertical movement in fixed bearings 54 and 56, and an upper gripper jaw 58 slidably mounted for vertical movement between the jaw 46 and the extension 48 and normally held elevated by a spring 60. As seen in plan'view in Fig. 4, the outer edges of the gripper jaws are in the form of an arc struck from the axis I28 of the shaft 52. The shaft 52 is supported at its lower end by the left end portion of a horseshoe shaped plate 62 fixed to the upper end of a shaft 64 constructed and arranged for vertical movement by the operation of a lever 66 having a fulcrum 68 and a pivotal connection at I on the sliding post 36. For initially closing the gripper jaws 46 and 58 on the outwardly flanged margin of an upper mounted on a last arranged in upright position on work supporting plates hereinafter described, a short treadle I2 is pivotally mounted at I4 in the base of the standard. Two links I6 and I8 pivotally mounted on a slide 80 connect the treadle E2 to a lever 82 which, upon depression of the treadle, imparts upward movement to the horseshoe shaped plate 62 to close the gripper jaws. The closing of said jaws consists in imparting upward movement to the lower jaw 46 while the upper jaw 58 is held against upward movement by a fixed plate 84 forming a part of the toe head 66. The lower link I8 is slidably mounted in a bore in a block 88 mounted for swiveling movement on the treadle I2. A spring 90 surrounding the link I8 and positioned between the block 88 and a Washer 92 supported by a nut 94 normally holds the treadle I2 in its elevated position shown in Fig. 1. Referring to Fig. 2, the slide 89 is mounted for vertical movement in a guideway 96 formed in a bracket 98 secured to the front of the standard 20. The slide 80 has a vertical portion I00 which provides a pivotal mountingfor the links I6 and I8. The slide has also horizontal cylindrical portions WI and I03 which provide a mounting for a detent I02. The detent is a cylindrical member slidably mounted in a bore in said cylindrical portions and has at its left end, as seen in Fig. 2, a tooth constructed and arranged to engage ratchet teeth I04 formed in the fixed plate I06, and has at its right end a tail I08 projecting through a bore in the end Wall of the cylindrical portion I03 and outwardly therefrom beyond the vertical arm I I0 of a bell crank lever having a fixed fulcrum I I2. A pin I I4 projecting from the tail I08 lies in the path of movement of the vertical arm of the bell crank lever. The detent I 02 is normally held in ratchet engaging position by a spring II6 surrounding that portion of the tail mfiswithinwthe cylindrical portio'n l03.

6 An adjustable screw H8 .at the free end of the horizontal arm I of the bell crank. lever lies in the path of upward movement of a spring pressed plunger I2I mounted in an extension of the left side portion of the link 32, said extension being shaped to providema shoulder I23 from ing it from the ratchet teeth I04. The retraction of the detent is timed to occur just before a cam member. I22 mounted at the upper end of the shaft 64 moves horizontally into engagement with a roll (not shown) to effect a downward movement to the horseshoe shaped plate 62 sufilcient to permit the spring 60 to open the gripper jaws 46 and 58, permitting them to be moved out of engagement with the upper. It will be seen that during the downward movement of the horseshoe shaped plate 62 the lever 82 swings in a counterclockwise direction causing upward movement of the slide 80, and the detent I02 must be retracted at this time so that it will not obstruct such movement of the slide.- In the operation of themachine the gripper jaws 46 and 58 move outwardly and'toewardly in an arcuate path to tension the :upper over the last while the grippers remain closed on the work, and after the gripper jaws are opened as above described further arcuate movement of the jaws carries them into a position remote from the work. The arcuate movement of the jaws is effected by the operation of the cam lever 28'acting through connections including a .link I24 and a turn buckle I26 which serves as a means for adjusting the gripper jaws widthwise of a shoe in the machine. It will be understood that the above description of the construction and operation of the gripper mechanism at the left side of the machine applies equally well to the corresponding mechanism at the right side of the machine and that the two-gripper mechanism operates simultaneously to tension the upper over the forepart and instep portion of the last; A more detailed description of those features of the construction and operation of the gripper mechanism not specifically set forth herein will be found in the patent to Eek et al. No. 2,226,754 hereinbefore referred to.

Referring to Fig. 4, the illustrated machine is provided with a pair of toe wipers I30, a pair of heel wipers I32 and a pair of side wipers I34 which operate on opposite side portions of the shoe between the breast line region and the region of the tip line. The side wipers I34 are constructed to operate on three consecutive half sizes, there being five sets of side wipers for the left foot shoe and fivesets for the right foot shoe in the run of juvenile sizes from 2 to 9. In the same run two sets of tee wipers are required for the left foot shoe and two sets for the right foot shoe, one set operating on sizes from 2 to 6 and the other set on sizes from 6 to 9. The heel wipers are universal for the entire run from size 2 to size 9 and operate on both right and left foot shoes. A pair of short, thin flexible wiper plates I36 are secured by screws I31 (Fig. 5) in recesses in the bottom surfaces of the toe wipers respectively, said recesses being constructed and arranged to position the wiper plates I36 accu rately relatively to the toe wipers so that the wiping edge of each wiper plate L36 is. accurately alined with. the: wiping edge of the. toe wiper to which. it is. attached: as. shown in Fig. 4.. The wiper plates I361 serve to bridge the gap which occursbetween. the toe wipersand the side wipers when operating on thelarger sizes in the range on which the wipers are intended to operate. The wiper plates I36. are of universal construction and consequently only one set is required for each station of the machine. The position of the side wipersrelatively to the heel wipers remains substantially constant and. consequently no provision is made for bridging the slight gap that occurs between. them; The toe wipers. I30 are secured by screws I38: to wiper carrier plates I49. The path of movementof each of the wiper carrier plates is. determined by two fixed rolls I42 and. I44 positioned in arcuate .slots I46. and I48 formed in the wiper carrier plate. These slots are so constructed and arranged that the toe wiper plates advance bodily, heelwardly while simultaneously closing on the toe portion of the shoe in the machine. The wipers are advanced by the operation of the cam lever 26. (Fig. 1.) which has mounted. in its upper end portion a screw M9 constructed and arranged to. engage the end of a. stem i'I projecting from a cross bar I53 (Fig. 4) which isconnected by a link. I55 to a pivot pin. I5] projecting downwardly from the wiper carrier plate Mil. The screw M9 is adjustable in. the cam lever 26 to vary the space which exists between the screw and the stem whenthe machine is at. rest thereby adjusting the extent. of; the. Operative movement of: the toe wipers. The-mechanism through which the cam lever 26* actuates the toe wipers is specifically illustrated and described in the Baxter patent hereinbefore identified.

Each, of; theqheel Wipers I32. has an upwardly extending: cylindrical boss I54 (Fig. 8) which is mountedfor rotary movement. in a bore in a heel wiper carrier orslide I55 and retained therein by a; headed screw I52 mounted in a tapped hole extending; through the center of. the boss and intothewiper plate. The illustrated heelwipers are of the;butting-, point type, so called, characterized by the meeting of the ends of thewiping edges at thebackline portion of ashoe in the machine (Fig. 7);. The butting end portions I53 oi the-wiper; plates extendingirom the meeting wipers are shownin th position relatively to each other which they occupy when they are closed on. the work. The wipers are normally held in: their open position with their outer edges ISB- abutting shoulders I60 formed inthe wiper carrier. To this end, a flat springv I62 having forwardly bent arcuate sections is secured to a central portion of the shoulder I60 by a headed screw 64, the arcuate sections of said, spring .being arrangedto engage respectively the rear edge faces. of the heel wiper plates. Referring toEig. 11, the heel wiper' carrier I56 is provided-at its rear end portion with an. upward extension Ififiterminating widthwise in out wardly projectingtongues IE8 which are mountedior sliding movement lengthwise of' a shoe in tb -machine in grooves formed in a carrier plate or- Slider]eWhiGh;,iI1'tl11D-, is mounted for-sliding movement; lengthwise of the shoe in rabbeted portions I12. oira'ca-rriage I14. Mounted in the heel wiper: carrier-I56: is a pin l'IB'which projects upwardly from the carrier into a slot I I8- (Fig; '75 which determines the limits of-movement of the heel. wiper carrier relatively to the carrier- I10. Referringto Fig. 8, the heel wiper carrier is nor.- mally held at the limit of its toeward movement relatively; to the carrier. I'll! by a spring I mounted on a rod I82 projecting from a downward extension I34 of the carrier I10 in the direction of the heel end of a shoe in the machine, s aid' rod being arrangedin alinement with a bore I86v in the wiper carrier in which said spring is seated. Referring to Fig. ll, the carrier llfi-isprovidedat each side thereof with a downwardly extending headed stud I88 on which there is pivotally mounted a carrier I90 for one of the side wipers I34. Referring; to Fig. '7, the carrier I90 is swung in a counterclockwise direction about the stud- I88- to'advance the side wiper I34 at the right side of the'shoe by the operation of rack. teeth I92- formed in an outward extension I94 of the heel wiper carrier I56 with a gear segment I98 formed in the carrier I90. The above description of the rack and segment mechanism for operating theside wiper I35 at the right side of the shoe applies equally well to the rack I98 and gear segment 20%] at the left side of the shoe. The segments are so arranged relatively to the rackteeth that the side wipers I34 are in their retracted position shown-in Fig. "I when the heel'wiper carrier i553 is at the limit of its movement. toward the heel end of the shoe in which position: it is normally held bythe spring I80. Thus it will be seen. that the heel wipers I32 and, the side wipers I34 are both normally held in their respective retracted positions when there is no shoe in the machine.

Inorderv that the crease lines formed inthe upper by each of the side wipers I32 Will be. in substantial alinement with the crease lines formed by the toe wipers ISIlthesidewiper carriers must be accurately located heightwise of the shoe with the wiping edges of the side wipers accurately alined with the wiping edges of the toe wipers. To this endmeansis provided in the illustratedmachine for holding the forward end portion of each of the side wiper carriers in accurately predetermined position heightwise of the shoe and for preventing vertical movement of the side wipers in response. to the upward movement. of the. shoe during the upper shaping operation. Referring to Figs. 6- and 9, the slide IlIl has an extension H1 at each side thereof and. each of these extensions is strengthened by anupwardly extending flange I13 running from the extremity of. the slide at its outer edge inwardly and toewardly toward the shank portion of they shoe in. the machine, then curving heelwardly andrunningto a point in line. with a'boss 241 projecting upwardly from the slide, then turning and running. inwardly to form a junction with said boss. The curved portions of the ex tensions I1 I lying-at opposite sides of the shank portion of the shoe in the machine overlie the side wiper carriers. Referring to Fig. 9 it-will be seen thatthe .plane bottom surface of the extension. Il'I is arranged in contiguous. relation to the plane top surface of the side wiper carrier I90 and holds said carrier against upward movement without restricting operativemovement thereof; Each side wiper-carrier is supported from beneath by an arm II5' rojecting downwardly from the bottom surface of the slide I10 and extending horizontally to a point substantially in vertical alinement with the extremity of the extension I'II. At its extremity each arm I75 is surface which engages the plane bottom surface of the wiper carrier and maintains a contiguous relation between the carrier and the extension IH as shown in Fig. 9. The extension Ill and the arm I15 are accurately spaced relatively to each other in a vertical direction to permit free sliding movement of the wiper carrier between them while preventing any appreciable vertical movement thereof.

The slide H which carries the heel Wipers and the side wipers is manually advanced from its position illustrated in Fig. to bring the wipers into engagement with an upper such, for example, as the upper 2B2 illustrated in Fig. 10 mounted on a last 204. The shoe at this time is supported slightly below its lasting position so that the heel wipers and side wipers engage the upper 262 on a line slightly above the plane of the last bottom. In order to facilitate the manual advancement of the slide I!!! said slide is provided with two upstanding handles 208 (Fig. 3). For holding the slide against return movement after its manual advancement a detent 208 (Fig. 8) is mounted in a bore in the downward extension I84 of the slide and arranged to engage ratchet teeth formed in a plate 2H! secured to the upper surface of the base of the carriage 4 2. The detent has an upwardly extending stem 2|2 surrounded by a spring 2M which urges the detent downwardly into ratchet engaging position. The detent is moved upwardly to permit the return of the slide to its position shown in Fig. 10 by the manual operation of a bell crank lever 216 pivotally mounted at its elbow on a pin 2|8 mounted in cars formed in the slide H0, one of said ears being identified by the numeral 220 in Fig. 8. As shown in Fig. 3 the handle 22! at the upper end of the vertical arm of the bell crank lever H6 is so located with relation to the handles 296 that the operator may conveniently operate it with either thumb while gripping the handles 2% with both hands. The horizontal arm of the bell crank lever is bifurcated to receive the up+ per end portion of the stem 2l2 which has its opposite sides slabbed off so that it fits into the bifurcated portion of the lever. A cross pin 222 in the stem 212 provides a connection between the stem and the bell crank lever, said lever be ing notched to receive said cross pin. The slabbed off upper end portion of the stem 2|2 is accurately fitted into the bifurcated portion of the bell crank lever in order that a correct orientation of the detent relatively to the ratchet teeth will be maintained.

In the operation of the machine the shoe is moved upwardly to cause the wipers to. wipe the upper downwardly to the bottom of the last, and thereupon the wipers are advanced slightly to form a well defined crease line at the apex of the angle defined by the body portion of the upper and its outwardly flanged margin. At the heel end of the shoe the extent. of the advancement of the heel wipers I32 to form a crease line in the upper is determined by the engagement of a leather-faced abutment memher 224- (Fig. 8) with the heel end portion of the upper thereby arresting the advancement of the heel wiper carrier 156. the manual operation of the slide Hi] the heel wiper carrier I56 and the slide I10 advance as a unit until the abutment member 224 engages the heel end portion of the shoe and thereupon the slide 1151 a v n es relativel to the .heel

In the course ofextremity of the cone portion of, the last.

wiper carrier l 56 thereby actuating the gear segment I96 and 200 (Fig. 7) to swing the side wipers I34; into upper engaging position.v

horizontalshank portion 226 which fits into-agroove 228 formed in the heel wiper carrier I56 and is slotted to receive a headed clamping screw 23d (Fig. 8). Thus it will be seen that the abutment member is adjustable lengthwise of a shoe in the machine to'vary the extent of the movement of translation of the heel wipers toewardly in their upper creasing operation.

The advancement of the heel wipers inwardly under the last bottom hasa tendency to cam the heel portion of the last upwardly thus misplacing the last relatively to the upper. In order to control this tendency a last holddown is mounted on the slide H6 and arranged to be brought into position over the cone portion of the last. The illustrated holddown member is in the form of a plunger 232 (Fig. 9) having at its lower end a flat head constructed for engagement with'the plane surface at the upper The plunger. is mounted-in a barrel 234 which is adjustably secured by a split clamp 236 at the free end of an arm 238 mounted for free swinging movement on a post 24!! projecting upwardly from a boss 24! on the slide I10. 232 is provided at its upper end with a stem 242 which is surrounded by a spring 244 which expands between the head of the plunger and a shoulder at the upper end of the barrel to urge the plunger downwardly. The normal position of the plunger, as shown in Fig. 9, is determined by the engagement of a stop nut 246 with the upper end of the barrel 234. In order to hold the arm 238 yieldingly in the position in which it is located by the operator a spring washer 252 backed up by a nut 254 presses against the hub 248 of said arm.

In order to prevent accidental removal of the slide ill] from the carriage 42 a plunger 256 is mounted in a bore in oppositely extending bosses 250 and 256 in the base of the carriage and is normally held by a spring 258 in the position shown in Fig. 9 wherein the head of the plunger projects upwardly from the boss 260 into the path of movement of the left arm I15 secured to the bottom of the slide [10. To facilitate the retraction of the plunger 255 to permit the removal of the slide H0 from the carriage 42 a knurled head 264 is secured to the stem of the plunger and arranged to engage the downwardly extending boss 266.

To provide for the power operation of the heel wipers and side wipers, the carriage 52 has downwardly extending legs 268 (Fig. 9) which are bored horizontally for sliding engagement with two cylindrical horizontal rails 27!! each of which is mounted in and secured to uprights 2l2 formed in a plate 214 fixed to the upper portion of the standard 20 and the carriage is actuated by a movement of the thrust member 30 to the right as seen in Fig. l, the right end portion of said thrust member beingpivotally connected to'the head 216 of the rod 38 the opposite end of which is slidably mounted in a bearing in a yoke 218 which is connected to a lever 280 by a cross In the power operation of the machine the slide H0 is The plunger 11 pin 282 secured in the yoke 218 and extendin through a slot 284 provided in the lever 280. In the operation of the machine the cross p 282 moves freely in the slot 284 until it engages the end of an abutment screw 28E mounted in the lever 289 and arranged to extend into the upper portion of said slot. The screw 286 may be adjusted to determine the extent of the lost motion of the yoke 2T8 relatively to the lever 280. By so adjusting the screw 286 the extent of the operative movement of the carriage 42 is determined. Referring to Fig. 8, the upper portion of the lever 288 is bifurcated to receive in sliding engagement 'a block 288 pivotally mounted on a cross pin 29:: fixed to ears 292 projecting downwardly from the base of the carriage. The normal retracted position of the carriage 42 is determined by the engagement of a spring pressed plunger 294 (Fig. 1) carried by an extension of the lever 280 with the bottom surface of the plate 214. In order to provide a yielding action of the heel Wipers and side wipers on the shoe the thrust member operates through the spring surrounding rod 38 and positioned between the head 216 and the yoke '218. A collar 296 (Fig. 3) secured to that portion of the rod 38 projectinginto the yoke 218 determines the normal rest position of the carriage.

While it has been found that the toe wipers,

the heel wipers, and the outside shank wiper 01 erate satisfactorily on the entire run of sizes for which they are intended, it is desirable to provide for adjustment of the inside shank wiper lengthwise of the shoe to insure a satisfactory lasting operation on the inside of the shank where the last bottom line has a pronounced inward curvature in some types of lasts. To that end each of the side wiper carriers is provided with a slot 298 (Fig. 7) for mounting a wiper attaching screw 303 the opposite sides of which are slabbed off to hold the screw against turning movement in said slot. As herein illustrated the head of the screwtefl engages the bottom of the wiper (Fig. 8) and a clamping nut 302 is threaded onto the upwardly projecting portion of the screw. Referring to Fig. 7, a washer 304 having an extension in the form of a pointer is mounted on the screw 300 and held against rotation relatively to the screw by providing a screw receiving opening in the I washer having parallel edges which engage the slabbed off side portions of the screw. The

pointer provided by the washer registers with a scale formed on the wiper carrier and indicating by suitable characters, the range of sizes on which the wiper operates. To facilitate the changing of the side wipers I34 each of said wipers is provided with a notch 305 (Fig. '7'.) tending inwardly from its outer edge and terminating in a cylindrical surface of the same curvature as the screw 380. Thus it will be seen that the side wipers may be readily removed from their carriers after releasing the clamping nuts 382 sufiiciently to relieve the clamping pressure and another set of wipers may be ead ly mounted on the carriers and secured thereto. The side wipers are correctly oriented for 0D- erative movement by bringing the beveled edge faces 30! formed in said wipers into engagement with complementally beveled shoulders formed in the wiper carriers.

For supporting in upright position a stitchdown upper assembled, together with an extension sole, on a last, the illustrated machine is provided with a work supporting, plate 396 (F gl2) constructed and arranged to support shoes in the run of juvenile sizes from 2 to 9 inclusive. The plate 306 is secured to a carrier 388 fixed to the upper end portion of the post 36 (Fig. 1). As shown in Fig. 12, the plate 3% is recessed from its longitudinal central portion heelwardly and in this recessed portion there is mounted any one of a plurality of heel supporting plates. For shoes having spring heels six such plates are provided in the run of sizes from 2 to 9, there being one set of three plates for right foot shoes and another set for left foot shoes. One plate is provided for sizes 2 to 3 /2, a second for sizes 4 to 6, and a third for sizes 6 /2 to 9. For shoes which are not provided with spring heels, these being for the most part shoes in the smaller infant sizes, a heel supporting plate having a plane work supporting surface is constructed and arranged to be mounted in the recess in the plate 365. For positioning any one of the heel supporting plates above referred to on the plate 363 a shoulder 312 is provided at the forward extremity of the recess in the heel portion of the plate 356 and two dowel pins 3 are arranged to project upwardly from the plate 356 and to register with bores in the heel supporting plate. The surface contour of the top of the plate 3i!) illustrated in the drawings is complemental to the contour of the sole of a shoe of the type generally indicated by broken lines in Fig. 12, said shoe being characterized by a spring heel inserted between the heel portion of the outsole and the shoe bottom. The heel supporting plate 3H] has at its forward end a horizontal plane surface 315 which is elevated relatively to the horizontal surface EH8 of the body portion of the plate, said surfaces being separated by a beveled surface 32a which, as shown in Fig. 10, extends diagonally across the upper surface of the plate and registers with the heel breast portion of the outsole. Referring to Fig. 3, the carrier 398 is provided with uprights 322 which are flanged outwardly at their upper ends to support the heel end portion of the plate 396, the plate being secured to said uprights by two screws 325 (Fig. 12). At its too portion the plate 306 is positioned relatively to the body portion of the carrier 308 by the dowel pins 326 projecting upwardly from the carrier into sockets in the-plate. The toe supporting surface 328 of the plate 395 is downwardly inclined heelwardly to a slight extent to compensate, at least in some degree, for the toe spring of the shoe in the machine. When the machine is at rest the carrier 308 is supported by a boss 33!! (Fig. l) projecting upwardly from the top of the standard 20. When the carrier is in its rest position the work supporting plate 366 is so located vertically with relation to the toe wipers l3!) that the outwardly flanged margin of a stitchdown upper together with the extension of the sole may conveniently be inserted between the wipers and the plate, as shown in Fig. 10.

The illustrated machine is constructed and arranged to operate on a stitchdown shoe in which the heel portion as Well as the forepart is flanged outwardly for attachment to the margin of an extension sole. Preferably the counter is molded with an outturned flange and the margins of the upper, counter, and lining are adhesively attached to each other and to an extension sole in the operation of assembling the shoe parts on a last. In the preparation of the shoe parts for the operation of the present machine h eon the mar ins of t e upper m ia n work supporting plate 306 after'the wipers are closed upon the shoe. When the machine is at rest the slide I10 which mounts the heel and side lasting wiper assembly is fully retracted into its position illustrated in Fig. 10 so that the shoe parts assembled on their last may conveniently be mounted on the plate 306 and advanced manually into their position in Fig. 10 in which the toe portion of the upper is in intimate contact with the wiping edges of the toe wipers. After so locating the shoe in the machine the operator manually directs the outturned margins of the upper materials into the gripper laws 58 and 06 (Fig. l) at the left side of the machine and into the corresponding gripper jaws of the right side of the machine and depresses the treadle 12 to close the jaws n the work. The arm 238 (Fig. 9) is now swung upon the post 200 to bring the last holddown member or plunger 232 into a position over the cone portion of the last. The plunger will have been adjusted vertically so that it is substantially contiguous to the cone of the last when it is swung into operative position. After the gripper jaws have been initially closed on the work the operator grasps the handles 206 of the slide I10 and advances the slide from its position shown in Fig. 10 into its position shown in Fig. 4. Such advancement of the slide s arrested by the engagement of the heel abutment member 224 with the heel end portion of the upper. tent 208 (Fig. 8) acting on the ratchet plate 2H? serves to hold the slide I 10 against return movement during the subsequent power operation of the machine. The operator now depresses the treadle 44 to initiate the power cycle. Thereupon the grippers are operated to tension the upper over the last and the wipers are advanced simultaneously with the upward movement of the work supporting plate 305 thus causing the upper to be wiped heightwise of the last toward the last bottom. The final advancement of the wipers occurs after the plate 396 has come to the limit of its upward movement, such final advancement serving to form a well defined crease line in the upper at the apex of the angle defined by the body portion of the upper and its outturned flange. Upon the completion of the advancement of the wipers and the upward movement of the plate 306 the machine comes to rest with the work held under pressure between the plate and the wipers and the pressure on the work is maintained while another shoe is positioned in the other station of the machine. During the operation of the second station the work supporting plate 305 in the first station moves downwardly to relieve the pressure on the work and the wipers are retracted into their respective positions shown in Fig. 4. While the work is held under pressure in the-second station the operator grasps the handles 206 of the slide I70 and operates the handle 22! of the bell crank lever 2H5 to retract the detent 208 and then retracts the slide I'll] into its position shown in Fig. 10, leaving the shoe free to be removed from the machine. -The shoe is noW completely lasted and the extension sole is cement attached to the outwardly flanged margins of the upper materials about the entire periphery of the shoe.

Having thus described our invention, what we It will be understood that the declaim as new and desire to secure by Letters Pat} ent of the United States is:

1. In a machine for shaping stitchdown uppers over lasts, a pair of toe wipers, a pair of heel wipers, grippers at opposite sides of the forepart of the shoe constructed and arranged to tension operated means for releasing said holding means.

2. In amachine for shaping stitchdown uppers'over lasts, a pair of toe wipers, a pair of heel wipers, grippers at eachside of the forepart of the shoe constructed and arranged to engage the outwardly flanged upper materials, a member for holding the grippers closed on the upper, a man- 'ually operated actuator for closing the grippers,

power operated means for further closing the grippers'and actuating them to tension the upper over a last, and a member operated by said power operated means for releasing said holding member so that the grippers will open when the power operated means is released.

3. In a machine for shaping stitchdown uppers over lasts, a pair of toe wipers, a pair of heel wipers, grippers constructed and arranged to engage the outwardly flanged margins of the upper materials at opposite sides of the forepart of the. upper, means for pressing a sole against the outwardly flanged margins of the'upper materials, an actuator, and connections from said actuator for actuating said wipers and grippers and said sole pressing means in predetermined time relation to each other.

4. In a machine for shaping stitchdown uppers over lasts, a pair of toe wipers, a pair of heel wipers, grippers constructed and arranged to engage the outwardly flanged margins of the upper materials at opposite sides of the forepart of the upper, means for pressing a sole against the outwardly flanged margins of the upper materials, an actuator, connections from said actuator for actuating said wipers and grippers and said sole pressing means in predetermined time relation to each other, said connections including means for adjusting the timing of the advancement of the toe wipers, and means foradjusting the timing of the advancement of the heel wipers.

5. In a machine for shaping stitchdown uppers over lasts, a, pair of toe wipers, a pair of heel. wipers, a pair of side wipers, grippers at opposite sides of the forepart of a shoe in the machine Y and arranged to engage the entire bottom surface of a sole, grippers constructed and arranged to engage outwardly flanged upper materials at opposite sides of the forepart of an upper, wipers constructed and arranged to engage the entire extent of the outwardly flanged margins of the upper materials, an actuator; and connections from said actuator for operating the grippers and for actuating the sole supporting means to cause the sole and the outwardly flanged margins of the upper materials to be pressed between said wipers and said sole supporting means.

7. In a machine for shaping uppers over lasts, a wiper assembly constructed and arranged to operate upon the entire lasting margin of a closed upper, said wiper assembly comprising a pair of toe wipers constructed and arranged for pivotal closing movement about an axis coincidental with the adjacent ends of their wiping edges, a pair of heel wipers constructed and arranged for closing movement about axes offset laterally from their wiping edges, a pair of wipers constructed and arranged to operate on opposite side portions of an upper, and a pair of thin forepart wipers secured to the toe wipers and arranged to form a junction with the side wipers.

8. In an upper shaping machine a pair of toe wipers, means for advancing said wipers bodily heelwardly of a shoe in the machine and closing said Wipers, a pair of butting point heel wipers each mounted on an axis offset laterally from the butting points of said wipers, a carrier for said heel wipers, means for moving said carrier toewardly thereby to cause said heel wipers to last the heel portion of the shoe, a pair of side wipers constructed and arranged for bodily movement toewardly with the heel wipers and for operating movement widthwise of the shoe, and apair of thin forepart wipers secured to said toe wipers and extending heelwardly' therefrom.

9. In an upper shaping machine a pair of toe wipers, means for advancing said wipers bodily heelwardly of a shoe in the machine and closing said wipers, a pair of butting point heel wipers each mounted on an axis offset laterally from its butting point, a carrier for said heel wipers, means for moving said carrier toewardly thereby to cause said heel wipers to last the heel portion of the shoe, a pair of side wipers constructed and arranged for bodily movement toewardly with the heel wipers and for operating movement widthwise of the shoe, and a pair of thin forepart wipers secured to said toe wipers and extending heelwardly therefrom, said side wipers being recessed to provide clearance for the operation of said forepart wipers.

10. In a machine for shaping uppers over lasts, a pair of end wipers, a first slide on which said end wipers are mounted for closing movement, a pair of side wipers, a second slide on which said side wipers are mounted for movement widthwise of a shoe in the machine, said second slide having a guideway in which the first slide is mounted, a carriage for said slides, said carriage having a guideway in which the second slide is mounted, and means for moving said carriage longitudinally of a shoe in the machine.

11. In a machine for shaping uppers over lasts, a pair of end wipers, a first slide on which said end wipers are mounted for wiping movement, a member mounted on said first slide and arranged to arrest the advancement of said slide by engagement with a shoe in the machine, a pair of side wipers, asecond lide on which said side wipers are mounted for wiping movement, a carriage for said slides, and means for advancing said carriage longitudinally of a shoe in the machine.

12. In a machine for shaping uppers over lasts, a pair of end wipers constructed and arranged to operate on a. shoe arranged in upright position in themachine, a firstslide on whichsaid end wipers are mounted for closing movement, a pair of side wipers, a second slide on which said side wipers are mounted for movement widthwise of the shoe, a shoe holddown mounted on said second slide, a carriage for said slides, and means for moving said carriage longitudinally of the shoe.

13. In a machine for shaping uppers over lasts, a pair of end wipers, a first slide on which said wipers are mounted for Wiping movement, a second slide on which said first slide is mounted for movement longitudinally of a shoe in the machine, a pair of side wipers mounted on said second slide for wiping movement, yielding means for advancing said first slide relatively to said second slide, and means for advancing said second slide.

14. In a machine for shaping uppers over lasts, a pair of end wipers, a first slide on which said end wipers are mounted for wiping movement, a pair of side wipers, a second slide on which said side wipers are mounted for wiping movement, said second slide having a guideway in which the first slide is mounted, and operating connections between the first slide and the side wipers whereby said side wipers are advanced by relative movement of the side wipers and the first slide.

15. In a machine for shaping uppers over lasts, a pair of end wipers, a first slide on which said end wipers are mounted for wiping movement, a pair of side wipers, a second slide on which said side wipers are mounted for wiping movement, and intermeshing gear teeth formed in the first slide and the side wipers respectively whereby the side wipers are advanced by relative movement of the first slide and the side wipers.

16. In a machine for shaping uppers over lasts, a pair of end wipers, a first slide on which said end wipers are mounted for wiping movement, a second slide in which said first slide is mounted for rectilinearmovement longitudinally of a shoe in the machine, a pair of side wipers pivotally mounted on said second slide, rack teeth formed in said first slide and gear segments formed in said side wipers and constructed and arranged to mesh with said rack teeth.

17. In a machine for shaping uppers over lasts, a pair of end wipers, a first slide on which said end wipers are mounted for wiping movement, a shoe engaging member mounted on said first slide for adjustive movement longitudinally of a shoe in the machine, a second slide in which said first slide is mounted for rectilinear movement longitudinally of a shoe in the machine, a pair of side wipers pivotally mounted on said second slide, rack teeth formed in said first slide and gear segments formed in said side wipers and constructed and arranged to mesh with said rack teeth.

18. In a machine for shaping uppers over lasts, a pair of end wipers, a first slide on which said end wipers are mounted for wiping movement, a second slide on which said first slide is mounted, a pair of side wipers mounted on said second slide, a carriage on which said second slide is mounted, and means for holding said second slide against retracting movement relatively to said carriage.

19. In a machine for shaping uppers over lasts, a pair of end wipers, a first slide on which said end wipers are mounted for Wiping movement, a second slide on which said first slide is mounted, a pair of side wipers mounted on said second slide, a carriage on which said second slide is mounted, ratchet teeth on said carriage, a pawl carried by said second slide, and a manually operated lever I a pair of end wipers, a first slide on which said end wipers are mounted, a pair of side wipers, a second slide on which said side wipers are mounted, a carriage in which both said slides are mounted, means for holding said second slide against 18 ond slide against movement in one direction relatively to said carriage, yielding means for holding said slides against relative movement and an actuator for advancing said carriage.

26. In a machine for shaping uppers over lasts, a pair of end wipers, a first slide on which said end wipers are mounted, a shoe engaging member securedto said slide, a pair of side Wipers, a

second slide on which said first'slide and said side wipers are mounted, a spring disposed between said slides and constructed and arranged V to hold said slides yieldingly' against relative movement in one direction relatively to said carriage, an' actuator for advancing said carriage, and yielding means whereby the advancement of the second slide is transmitted to the first slide.

22. In a machine for shaping uppers over lasts, a pair of end wipers, a pair of side wipers, a shoe engaging member, means for advancing theend wipers, the side wipers and the shoe engaging member as a unit until said shoee'n'gaging member engages a shoein the machine, and means rendered efiective for actuating the side wipers when the shoe engaging member is thus arrested.

23. In a machine for shapinguppers over lasts, a pair of end wipers, a first slide on which said end wipers are mounted, a shoe engaging member mounted on said slide, a pair of side wipers, a second slide on which said side wipers are mounted, means for advancing said slides as a unit until the first slide is arrested by the engagement of said shoe engaging member with a shoe in the machine and for thereafter advancing the second slide relatively to the first slide, and means actuated by such relative movement of the'slides for imparting wiping movement to the side wipers. H

24. In a machine for shaping uppers over lasts, a pair of end wipers, a first slide on which said movementin one direction, a carriage for said second slide, and means actin on said carriage first to advance said slides as a unit until the first slide is arrested by the engagement of said shoe engaging member with a shoe in the machine and thereafter to causethe second slide to move re1- atively to the first slide, and means actuated by end wipers are mounted, a shoe engaging mem- 5 ber secured to said first slide, a pair of side wipers, a second slide on which said side Wipers are mounted, a carriage for mounting said slides, means for positively holding said second slide against movement in one direction relatively to said carriage, means for yieldingly holding said first slide against movement in-one direction relatively to said carriage, an actuator for advancing said carriage, and means actuated by relative movement of said slides for imparting wiping movement to said side wipers.

25. In a machine for shaping uppers over lasts. a pair of end wipers, a first slide on which said end wipers are mounted, a member secured to said first slide, said member being constructed and arranged to arrest the advancement of said slide by engagement with an end portion of a shoe in the machine, a pair of side wipers, a second slide mounting said first slide and said side wipers, a carriage in which said second slide is mounted, a detent for positively holding said secsuch relative movement of the slides for imparting wiping movement to the side wipers.

27. In a machine for shaping uppers over lasts,

upper tensioning means comprising a 'pair of gripper jaws, a manually operated member for initially closing said gripper jaws, means for holding the gripper jaws initially closed, a power operated actuaton connections from said actuator for further closing said gripper, jaws and for releasing said holding means, and connections from said actuator for imparting a movement of translation to said gripper jaws.

28. In a machine for shaping uppers over lasts, upper tensioning means comprising a pair of gripper jaws, a manually operated actuator, connections from said actuator for initially closing said gripper jaws, means incorporated in saidv connections for holding the gripper jaws initially closed;- a power operated actuator, connections -from said power operated actuatorfor further closing said gripper jaws and for releasing'said holding means, and connections from'said power operated actuator for imparting a movement of translation to said gripper jaws.

ERNEST L. BUTLER. OTIS M. HOLMES.

References Cited in the'flleof" this patent I g V UNITED STATES PATENTS Number Germany Aug. 9, 1893 

